US8961046B2 - Paper discharge device and image forming apparatus having the same - Google Patents

Paper discharge device and image forming apparatus having the same Download PDF

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Publication number
US8961046B2
US8961046B2 US12/860,381 US86038110A US8961046B2 US 8961046 B2 US8961046 B2 US 8961046B2 US 86038110 A US86038110 A US 86038110A US 8961046 B2 US8961046 B2 US 8961046B2
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United States
Prior art keywords
recording medium
pinch roller
holding unit
cylindrical housing
discharge device
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Expired - Fee Related, expires
Application number
US12/860,381
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English (en)
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US20110057013A1 (en
Inventor
Kenji Eoka
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Toshiba TEC Corp
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Toshiba TEC Corp
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Assigned to TOSHIBA TEC KABUSHIKI KAISHA reassignment TOSHIBA TEC KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EOKA, KENJI
Publication of US20110057013A1 publication Critical patent/US20110057013A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/36—Advancing webs having means to optionally advance the web either in one longitudinal direction or in the opposite longitudinal direction
    • B65H20/40—Advancing webs having means to optionally advance the web either in one longitudinal direction or in the opposite longitudinal direction by changing the direction of mechanism driving the pinch roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/106—Sheet holders, retainers, movable guides, or stationary guides for the sheet output section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/006—Winding articles into rolls
    • B65H29/008—Winding single articles into single rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/43—Wall apparatus, i.e. mounted on vertical support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/44—Housings
    • B65H2402/443—Housings with openings for delivering material, e.g. for dispensing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/10—Specific machines for handling sheet(s)
    • B65H2408/13—Wall or kiosk dispenser, i.e. for positively handling or holding material until withdrawal by user

Definitions

  • Embodiments described herein relate generally to a paper discharge device that temporarily holds a recording medium discharged from an image forming apparatus, and discharges or collects the discharged recording medium, and an image forming apparatus including a paper discharge device.
  • An image forming apparatus such as a printer mounted in an information processing device such as an ATM (automated teller machine) terminal device in some instance will need the capability to output a paper copy of the image to a user.
  • a printer serves to print part of the information processed by an information processing device on a recording medium such as roll paper, and then discharge the recording medium after cutting it for delivery to a customer.
  • FIG. 1 is a side cross-sectional view of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment in a state where the holding operation of a recording medium is terminated.
  • FIG. 2 is a perspective view of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 3 is a front view of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 4 is a right side view of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 5 is a side cross-sectional view of a paper discharge device according to an exemplary embodiment in a state where the discharge operation of a recording medium starts.
  • FIG. 6 is a side cross-sectional view of a paper discharge device according to an exemplary embodiment in a state where the collection operation of a recording medium is performed.
  • FIG. 7 is a block diagram showing the construction of hardware of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 8 is a flowchart showing the operation of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 9 is a flowchart showing the holding operation of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 10 is a flowchart showing the discharge operation of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • FIG. 11 is a flowchart showing the collection operation of a paper discharge device and an image forming apparatus including the paper discharge device according to an exemplary embodiment.
  • a paper discharge device includes a holding unit mounted rotatably to a frame.
  • the holding unit includes a recording medium receiving inlet configured to receive a recording medium having an image formed thereon, a recording medium feeding path through which the received recording medium is conveyed, and a cylindrical housing configured to hold the conveyed recording medium in a rolled state.
  • the paper discharge device further includes a driven pinch roller and a driving pinch roller mounted at the recording medium receiving inlet, and a first sensor disposed at a side of the recording medium receiving inlet and a second sensor disposed at a side of the cylindrical housing with the driving pinch roller interposed between the first sensor and the second sensor.
  • the holding unit rotates to reach a holding position where the recording medium having an image formed thereon is received, and the driven pinch roller and the driving pinch roller are turned until the first sensor detects a rear end of a paper to cause the recording medium to be held in a rolled state within the cylindrical housing. Further, the holding unit rotates to reach a discharge position where the recording medium is discharged, and the driven pinch roller and the driving pinch roller are rotated in a reverse direction until the second sensor detects a rear end of the paper to cause the recording medium to be discharged.
  • a paper discharge device and an image forming apparatus including the paper discharge device according to one embodiment will be hereinafter described in detail with reference to the accompanying drawings.
  • FIG. 1 is a side cross-sectional view of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 in a state where the holding operation of a recording medium is terminated.
  • FIG. 2 is a perspective view of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 .
  • the image forming apparatus includes a paper discharge device 100 and an image forming unit 110 .
  • the image forming unit 110 includes a conveying mechanism configured to convey a recording medium such as roll paper 120 and a printing mechanism configured to perform a printing operation on the recording medium conveyed by the conveying mechanism.
  • the printing mechanism employs, for example, a thermal head, which applies heat to a thermal paper, i.e., the conveyed recording medium to form an image on the recording medium, and a carriage that reciprocatingly moves the thermal head.
  • the recording medium having the image formed thereon is discharged through the paper discharge opening 111 and is guided to the paper discharge device 100 .
  • the paper discharge device 100 includes a holding unit 101 that is configured to hold the conveyed recording medium in a rolled state therein, a pair of retention units 102 configured such that the holding unit 101 is interposed between both sides thereof
  • the paper discharge device 100 further includes a driven pinch roller 103 disposed at a recording medium receiving inlet 106 of the holding unit 101 , and a driving pinch roller 104 disposed opposite the driven pinch roller 103 and configured to be turned to cause the driven pinch roller 103 to be turned together with the driving pinch roller 104 .
  • the paper discharge device 100 includes a first sensor 107 mounted nearer to a recording medium receiving inlet 106 than a nip portion formed between the driven pinch roller 103 and the driving pinch roller 104 , and a second sensor 108 mounted nearer to an opposite side of the recording medium receiving inlet 106 than the nip portion formed between the driven pinch roller 103 and the driving pinch roller 104 .
  • the paper discharge device 100 is rotatably mounted to a frame 132 by means of a turning shaft 105 .
  • the recording medium receiving inlet 106 of the holding unit 101 may be opened toward the image forming unit 110 , and is formed to be gradually narrowed toward the direction of the driven pinch roller 103 and the driving pinch roller 104 .
  • the holding unit 101 has a recording medium feeding path 101 A extending from the recording medium receiving inlet 106 in a direction opposite the direction of the image forming unit 110 via the nip portion formed between the driven pinch roller 103 and the driving pinch roller 104 .
  • the holding unit 101 includes a cylindrical housing 101 B formed in a circular arc shape so that it rotates along a turning shaft 105 in a direction opposite the direction of the recording medium receiving inlet 106 from the recording medium feeding path 101 A.
  • the recording medium feeding path 101 A of the holding unit 101 is formed along a tangential line of the cylindrical housing 101 B extending toward the direction of the image forming unit 110 .
  • the recording medium feeding path 101 A is formed at one end with the recording medium receiving inlet 106 opened toward the image forming unit 110 , and the driven pinch roller 103 and the driving pinch roller 104 are mounted in the vicinity of the recording medium receiving inlet 106 .
  • the holding unit 101 includes the first sensor 107 disposed at a side of the recording medium receiving inlet 106 and the second sensor 108 disposed at a side of the cylindrical housing 101 B with the driving pinch roller 104 interposed between the first sensor 107 and the second sensor 108 .
  • a recording medium P having an image formed thereon is fed to the nip portion between the driven pinch roller 103 and the driving pinch roller 104 via the recording medium receiving inlet 106 from the image forming unit 110 .
  • the driven pinch roller 103 and the driving pinch roller 104 is rotated with the recording medium P inserted into the nip portion therebetween to cause the recording medium P to be conveyed along the recording medium feeding path 101 A.
  • the recording medium P is rolled along the cylindrical housing 101 B and is held within the cylindrical housing 101 B.
  • the first sensor 107 and the second sensor 108 may employ an optical sensor.
  • the optical sensor When the optical path is blocked by the recording medium P, the optical sensor enters an ON state. On the other hand, when the optical path is not blocked, the optical sensor enters an OFF state.
  • FIG. 3 is a front view of a paper discharge device and an image forming apparatus including the paper discharge device
  • FIG. 4 is a right side view of a paper discharge device and an image forming apparatus including the paper discharge device.
  • the paper discharge device 100 includes a rotary motor 130 that rotates the holding unit 101 , and a gear 131 that decelerates rotation of the rotary motor 130 and transmits the decelerated rotational force to the holding unit 10 .
  • the gear 131 is provided with a slit and a rotary sensor that is an optical sensor for detecting the slit is mounted at the frame 132 .
  • the rotary motor 130 may employ a stepping motor. The rotating angle of the holding unit 101 and the position of the recording medium receiving inlet 106 are detected by the detection of the slit and the number of rotating steps of the rotary motor 130 .
  • FIG. 5 is a side cross-sectional view of a paper discharge device in a state where the discharge operation of a recording medium starts.
  • the holding unit 101 rotates along the turning shaft 105 by the rotary motor 130 until the recording medium receiving inlet 106 reaches a position where the recording medium is discharged.
  • the driven pinch roller 103 and the driving pinch roller 104 are rotated in directions opposite to each other so that the recording medium P held in a rolled state within the holding unit 101 is discharged to the outside. If the first sensor 107 does not enter an OFF state for a predetermined period of time, i.e., if a customer does not take out the recording medium P, the driven pinch roller 103 and the driving pinch roller 104 are rotated again to cause the recording medium P to be held within the holding unit 101 .
  • FIG. 6 is a side cross-sectional view of a paper discharge device in a state where the collection operation of a recording medium is performed.
  • the holding unit 101 rotates along the turning shaft 105 by the rotary motor 130 until the recording medium receiving inlet 106 reaches a position where the recording medium is collected.
  • the driven pinch roller 103 and the driving pinch roller 104 are rotated in directions opposite to each other so that the recording medium P held in a rolled state within the holding unit 101 is discharged out of the holding unit 101 and disposed in a collecting box.
  • FIG. 7 is a block diagram showing a hardware configuration of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 .
  • the image forming apparatus includes a CPU 201 as an arithmetic unit, ROM 202 and RAM 203 as storage units, a printing mechanism 204 that forms an image, a cutting mechanism 205 that cuts the recording medium P, a conveying motor 206 including a group of motors that convey the recording medium P, a first sensor 107 , a second sensor 108 , a rotary sensor 209 , a rotary motor 130 that rotates the holding unit 101 , an interface (I/F) 211 for connecting to a host computer.
  • the printing mechanism 204 and the cutting mechanism 205 are included in the image forming unit 110 .
  • the outputs of the first sensor 107 and the second sensor 108 , and the rotary sensor 209 are inputted to the CPU 201 which in turn controls the operations of the printing mechanism 204 , the cutting mechanism 205 , the conveying motor 206 and the rotary motor 130 .
  • FIG. 8 is a flowchart showing the operation of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 .
  • the image forming apparatus performs a holding operation of the recording medium P having an image formed thereon in act 801 , and performs a discharge operation of the recording medium P held in the paper discharge device 100 in act 802 .
  • the image forming apparatus determines whether the first sensor 107 is in an ON state for a predetermined period of time. If it is determined that the first sensor 107 is in an ON state for the predetermined period of time, the program proceeds to act 804 . On the other hand, if it is determined in act 803 that the first sensor 107 enters an OFF state within the predetermined period of time, the program returns to act 801 .
  • the image forming apparatus performs a collecting operation of the recording medium P.
  • FIG. 9 is a flowchart showing the holding operation of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 .
  • the image forming apparatus initiates the position of the holding unit 101 .
  • the image forming apparatus allows the rotary motor 130 to rotate the holding unit 101 until the rotary sensor 209 detects the slit, i.e., the holding unit 101 reaches the start position of the holding operation.
  • act 902 the image forming apparatus determines whether the first sensor 107 is in an ON state. If the first sensor 107 is in an ON state, the program proceeds to act 903 . On the other hand, if the first sensor 107 is not in an ON state, the program returns to act 902 .
  • the image forming apparatus allows the driving pinch roller 104 to be rotated and allows the recording medium P to be conveyed into the holding unit 101 so that it is held in a rolled state. That is, the image forming apparatus allows the driving pinch roller 104 to be rotated when the first sensor 107 detects a front end of the recording medium, and allows the recording medium P to be conveyed into the holding unit 101 .
  • act 904 the image forming apparatus determines whether the first sensor 107 is in an OFF state. If first sensor 107 is in an OFF state, the program proceeds to act 905 . On the other hand, if the first sensor 107 is not in an OFF state, the program returns to act 904 .
  • the image forming apparatus controls the driving pinch roller 104 to be suspended. That is, the image forming apparatus allows the conveyance of the recording medium P to be stopped when the first sensor 107 detects a rear end of the recording medium P. At this time, inserted into the nip portion between the driven pinch roller 103 and the driving pinch roller 104 is the recording medium P.
  • FIG. 10 is a flowchart showing the discharge operation of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 .
  • the image forming apparatus controls the rotary motor 130 to be rotated by a predetermined number of rotating steps so that the holding unit 101 reaches the discharge position of the recording medium.
  • the image forming apparatus controls the drive driving pinch roller 104 to be rotated in a direction opposite to the rotation direction thereof for holding the recording medium P, so that the recording medium P starts to be discharged to the outside.
  • act 1003 the image forming apparatus determines whether the second sensor 108 is in an OFF state. If the second sensor 108 is in an OFF state, the program proceeds to act 1004 . On the other hand, if the second sensor 108 is not in an OFF state, the program returns to act 1003 .
  • the image forming apparatus controls the driving pinch roller 104 to be suspended. That is, the image forming apparatus allows the discharge of the recording medium P to be stopped when the second sensor 108 detects a rear end of the recording medium P. At this time, inserted into the nip portion between the driven pinch roller 103 and the driving pinch roller 104 is the recording medium P.
  • FIG. 11 is a flowchart showing the collection operation of a paper discharge device 100 and an image forming apparatus including the paper discharge device 100 .
  • the CPU 210 of the image forming apparatus controls the driving pinch roller 104 to be rotated to cause the recording medium P to be again conveyed into the holding unit 101 so that the recording medium P is held in a rolled state within the holding unit 101 .
  • the image forming apparatus determines whether the first sensor 107 is in an OFF state. If the first sensor 107 is in an OFF state, the program proceeds to act 1103 . On the other hand, if the first sensor 107 is not in an OFF state, the program returns to act 1102 .
  • the image forming apparatus controls the driving pinch roller 104 to be suspended. That is, the image forming apparatus allows the conveyance of the recording medium P to be stopped when the first sensor 107 detects a rear end of the recording medium P. At this time, inserted into the nip portion between the driven pinch roller 103 and the driving pinch roller 104 is the recording medium P.
  • the image forming apparatus controls the rotary motor 130 to be rotated by a predetermined number of rotating steps so that the holding unit 101 reaches the collecting position.
  • the image forming apparatus controls the driving pinch roller 104 to be rotated in a direction opposite to the rotating direction thereof for holding the recording medium P, and then the recording medium P starts to be discharged to the outside.
  • the image forming apparatus determines whether the first sensor 107 and the second sensor 108 are in an OFF state. If the first sensor 107 and the second sensor 108 are in an OFF state, the program proceeds to act 1107 . On the other hand, if any of the first sensor 107 and the second sensor 108 is not in an OFF state, the program returns to act 1106 .
  • the image forming apparatus controls the driving pinch roller 104 to be suspended. That is, the image forming apparatus suspends the driving pinch roller 104 when the first sensor 107 and the second sensor 108 detect completion of the discharge of the recording medium P.
  • the second sensor 108 may be omitted in the hardware configuration.
  • the image forming apparatus may be configured such that the driving pinch roller 104 is suspended after a lapse of a predetermined period of time from when the first sensor 107 enters an OFF state.
  • the paper discharge device 100 and the image forming apparatus including the paper discharge device 100 include the holding unit 101 which is rotatably mounted and is configured to hold the recording medium P received from the image forming unit 110 in a rolled state within the holding unit 101 .
  • the paper discharge device 100 performs the holding operation before the discharge operation.
  • the paper discharge device 100 allows the holding unit 101 to be rotated to reach the discharge position so that the recording medium P is discharged.
  • the paper discharge device 100 allows the recording medium P to be again held within the holding unit 101 , and then allows the holding unit 101 to be rotated to reach the collecting position.
  • the paper discharge device in some embodiments allows for a recording medium to be held within the paper discharge device until the completion of the printing of the recording medium, and may also in some embodiments allow a recording medium that is not taken out by a customer to be collected by the paper discharge device.
  • the size of the device in some embodiments can be reduced and a degree of freedom of a recording medium discharge direction can increase.
  • entities for executing the actions can refer to a computer-related entity, either hardware, a combination of hardware and software, software, or software in execution.
  • an entity for executing an action can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and a computer.
  • an application running on an apparatus and the apparatus can be an entity.
  • One or more entities can reside within a process and/or thread of execution and an entity can be localized on one apparatus and/or distributed between two or more apparatuses.
  • the program for realizing the functions can be recorded in the apparatus, can be downloaded through a network to the apparatus and can be installed in the apparatus from a computer readable storage medium storing the program therein.
  • a form of the computer readable storage medium can be any form as long as the computer readable storage medium can store programs and is readable by the apparatus such as a disk type ROM and a solid-state computer storage media.
  • the functions obtained by installation or download in advance in this way can be realized in cooperation with an OS(Operating System) or the like in the apparatus.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Pile Receivers (AREA)
US12/860,381 2009-09-08 2010-08-20 Paper discharge device and image forming apparatus having the same Expired - Fee Related US8961046B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009207444A JP4846009B2 (ja) 2009-09-08 2009-09-08 用紙排出装置及び用紙排出装置を備える画像形成装置
JP2009-207444 2009-09-08

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US20110057013A1 US20110057013A1 (en) 2011-03-10
US8961046B2 true US8961046B2 (en) 2015-02-24

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US5060880A (en) * 1990-03-14 1991-10-29 Xerox Corporation Apparatus for automatically spooling output media from an electrographic printer
JPH04128374A (ja) 1990-09-17 1992-04-28 Kyocera Corp コーティング工具の製造方法
JPH07220139A (ja) 1994-01-31 1995-08-18 Toyo Commun Equip Co Ltd 紙葉類払出装置
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USD815695S1 (en) * 2017-05-03 2018-04-17 Nsi International, Inc. Game station

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